CDA Tank by OMG is an innovative rebuildable tank atomizer with 25mm diameter and 2ml e-juice capacity. As a Multi-function tank, it adopts a unique spin buckle design for RDA/ RTA mode just by closing or opening the oil hole which is easy to operate and brings different vaping experience. Together with bayonet-type top filling design for never leaking, precisely bottom airflow control with eight air holes and a powerful dual coils build deck for various trick coils, CDA tank will bring you an simple and magical vaping.